Metal-cutting machine.



W. H. LUCAS.

METAL CUTTING MACHINE.

APPLICATION r1131) 111111119, 1911.

Patented Sept. 1, 1914.

3 $HE ETS- SHEBT 1.

1211; mom-e15 PETERS CO. PHorouTHu. WAbIiINGIUN, n c

,W. H. LUCAS.

METAL CUTTING MACHINE.

APPLICATION FILED JUNE 19, 1911.

1,109,344, Patented Sept. 1, 1914.

3 SHEBTSSHEET 3.

THE .IC/RRIS PETERS co.,PHOTO-LITHO..WA5H|NG1ON. D, c.

WILLIAM H. LncAs, ,or rnILAnELrnIA, rnNNsY v nIA, nssrenon mo ram) rESPEN, JAoo -nsrmv, an, 'nnnwxntmivr 1L: LUCAS, ALL, or rnrnnnn-nrnrn,

PENNSYLVANIA: A. ooPARtrnEnsHIr ns EsPEN-LUcAs lvmonllvnwonns,

' M TA 11m meme,

To all whom it may concern:

Be it known that I, WIL IAM H. LucAs,a

citizen of the United States, residing in for' the simultaneous cuttingof relatively long bars, beams,'rails, or the like (hereinafter, forconvenience, referred to as bars into shorter pieces either of uniformor of dissimilar lengths. Y Y

' In the accomp anying 'draw1ngs-I 1gure 1 lsan, end view of amachmeconstructed in accordance with my invention; Fig. 2 is atransverse section of the same on the line a-"a,'Fig;'1, and on anenlarged-scale, and

, Fig. 8 is a diagram on afreduced scale, illustrating one method ofdisposing of the elementsof the'machine on a c'oinmon bed or foundationplate for thepurpose' 'of cutting the bar into piecesof=unifor1nlengthi- The machine'is'of thetype known asya' cold sawcuttlng-ma'ch ne,and 1n carry ing out my invention I dispose a number ofsuch machines 'upon a common bed 'or foundation and drive them all froma common shaft, means beingprovlded for -ad just-ing the machines fromand towardeach other onthe bed to var'yfthe dlstances between thecutsmade bythe individual machines, and I havealso'devised aspecial form ofmachine having two saws so mounted upon the same shaftthat they willalways occupy a position relatively close to the shaft bearingwhilestill permitting of a certain amount of adjustability; on theshaft, in order to vary the distances between the saws to accord withthedesired distances between the cuts made or the other the machines may be-m0ved to right or left on the bed, suitable guide strips or splines 7engaging recesses in the Specification of Letterslatent. Sept 1,1914.ApplicationfiledJune 19,1911.1 serialnaxseaossJ- E- machine frame andbedto prevent dis'place5 merit of the 'i'nachines during such movement,and bolts 19, are carried by each-ma chineframe and ada'ptedfto T-shapedslots .10 1n the bed, serving to firmly secure each machine in positionupon the latter after adjustment."

Each machine comprises a frame 12carrying the necessary gearing foroperating the saws and terminatlng atio'ne end 111a table v13 providedwith one or more-screw clamps lt whereby the bar; to be cut can bepro'perly 'secured imposition at different points throughout its length,andqon each frame 12 is mounted" the saw carriage 15 which is"undercontrol of a feed screw 'engaging with a nut on the saw carriage,

whereby"the-carriage can beop erated' so as ;to move the saws from "andtoward the Each saw carriagehas, atf'each side, a. bearing 17 gfor asaw} shaft 19, the *latter" being provided,-betweenthe bearings, with "abevel pinion 20 whichmesheswith' a bevel wheel 21 on a'shaft 22, thelatter being adapted toturn in'a bearing 23. on the carriageand in abearing 24 on the frame 12,

and being free to movelongitudinally in- .the latter bearing and intl1e'hub 'ofa worm wheel 25,: which meshes" with a worm 26 on thedrivingshaft 27 (see Fig. 3) the of machines and being adaptedtosuitable' latter extending throughout the entire series bearingsjoneach machine, and the worms and worm wheels 'b'elng free to move 1ongitudinally upon their respective shafts but not free from drivingconnection therewith,

sothatthe movements of the machines-from and towardeach'other andmovement of ,thejsaw carriages upon the frames of the respectivemachines may be efiected with out interfering with the drivingconnection between said'worms and worm wheels and the respective shafts.Power to rotate the shaft 27 may be applied thereto at either one orboth ends of the same, in any coni venient manner. I ,c v

Each of thesaw shafts 19 has a cutting saw '55 at eachend, each" sawbeing, secured to one face of a hub whlch 1s 1n drivlng connection wit-hthe shaft. by means of oppositely disposedkeys 56 heldin place by setscrews 57 as shown inrFig. 7, a certain amount of longitudinaladjustment of each saw on the shaft being thereby permitted,

so as to vary the distance between the saws,

or such variation being efiected by revers' the overhang of the latterwill be so great that a certain amount of spring of the same will be:inevitable, and the deflection of the outermost saw will not beprevented.

In order to insure the rigid guidance of the saw carriage on the mainframe, the latter has, at each side, an inwardly projecting flange atthe top, and there is also a central rib with oppositely projectingflanges at the top, and between the flanges of the opposite side framesand those of the central rib travel a pair of guide tongues .60,retainer plates 61 being bolted to the under sides. of these tongues andbearing upon the under sides of the flanges, ofthe said end membersandrib of the frame, as shown in Fig. 2, so as to confine the saw carriagevertically to the frame as closely as is compatible with its freesliding movement thereon. The inwardly projecting ribs of the said,members of the frame 12 are provided with side bushings 62 adjustable bymeans of set screws 63 so asto. compensate for side wear and preventanylateral loosenose of fit of the tongues 60.

In Fig. 3, I have shown a diagram: in which eight machines are sodisposed as to simultaneously form sixteen cuts at equal distancesapart, but it will be evident that, owing to the provision accorded foradjustchine, 'from and toward each other, the location of the cutsthroughout the length of the bar may be varied as desired, and the barthereby out into pieces of dissimilar length, if such cutting isdesired.

- mach I claim the combination of the bed plate, a plurality of sawingmachines each having a plurality of saws, means for mounting saidmachines upon the bed plate so as to permit of their 7 adjustment fromand toward each other,

means for securing the saws of each machine so that they may be adjustedfrom I and toward each other, and means for trans-' mitting power to thesaws of the different ines.

2. In a multiple metal-sawing machine, the combination of the saw shaft,a carriage having bearings therefor, and saws having hubs mountedoutside of said bearingsupon the oppositely projecting ends of-the sawshaft, each saw being secured to the face of its hub and said hubprojecting beyond the saw to a greater extent upon one side than uponthe other, whereby the distance between the saws can be varied byreversing the hub of either saw upon the shaft.

3. In a metal sawing machine the combination of the saw shaft, acarriage having bearings for said shaft and having a plurality ofseparated guide tongues project.

ing downwardly therefrom, and a frame having a central support for thecarriage, opposite side supports therefor, and guide Slots for saidtongues located on opposite sides of said central support and betweenthe same and the side supports.

4. In a metal sawing machine, the combination of the saw shaft, acarriage having bearings therefor, and having projecting guide tongueswith retainer plates applied thereto, and aframe comprising outermembers and a centrally disposed rib, the outer members having inwardlyprojecting guide flanges and the central rib having a projecting guideflange on each side.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

. WM. H. LUCAS.

WVitnesses:

MATILDA F. SELFRIDGE, JULIA G. TAYLOR.

Copies of this patent may be obtained for five. cents each, byaddressing the Gommissioner'of Patents,

- Washington, I). C.

